Question

Possible Duplicate:
Merging PHP array, one as Keys the other as Values?

I have the following two arrays in PHP, which represent atmospheric gases and their compositions:

Array
(
    [0] => nitrogen
    [1] => argon
    [2] => oxygen
    [3] => carbon dioxide
)

Array
(
    [0] => 78
    [1] => 1
    [2] => 21
    [3] => 0
)

Is there an elegant way of obtaining the following array, a combination of keys and values:

Array
(
    "nitrogen" => 78
    "argon" => 1
    "oxygen" => 21
    "carbon dioxide" => 0
)

The methods I can think of involve loops, I don’t know if I’m complicating it. Is there a simple way?

Answer 1

array_combine(), simply:

$new_arr = array_combine($keys,$values);